docs: def __printCommandSyntax(self, command):
          """ Command-completion helper method: print command syntax """
          commandHelp = self.completion[command]
          if commandHelp != None and len(commandHelp) > 2:
              commandValues = commandHelp[2]
              #commandDefault = commandHelp[3]
              displayHelp = [self._color(self.COLOR_WHITE, command)]
              if commandValues != None:
                  valuesIsEnum = len(commandHelp) >= 6
                  if '+' in command or command.upper() in ['ATS0']:
                      displayHelp.append(self._color(self.COLOR_WHITE, '='))
                  displayHelp.append(('|' if valuesIsEnum else ',').join([value[0] for value in commandValues]))
              sys.stdout.write('\r Syntax: {0}\n'.format(self._color(self.COLOR_WHITE, ''.join(displayHelp))))
              sys.stdout.flush()
              self._refreshInputPrompt(len(self.inputBuffer))